Alright then, thankee much, and I'll get back to you on the body thing.
I guess so on the biome, I mean I've even cut back on what biomes they can inhabit, and it still goes nuts... my next thought on the biggest reason would have been the age, but that shouldn't matter as much... maybe they do just really enjoy laying eggs? X3 I remember when I had clutch sizes at 1:3, I saw these HUGE families, like 20 cousins and 10 siblings, and I just went 'no... that's insane' and cut back.
UPDATE: The game does not seem to like seeing bodyparts all by themselves in the caste section, claiming 'no tissue thickness' for each body part referenced.
Maybe I can go the route of the Antmen? Select to two castes I want, make this body shape, select the other two, add that little change, then select all castes and use the body plan/body detail stuff?
UPDATE2: I did it like that, then well... moved every other token into the grasp of 'select_caste:all' and I got only one error in the log, related back to the horn tissue again (I'll figure out where to make it reference later) So now it looks like I should have my two castes ^_^ winged drakes, and tentacled drakes >.>
The easiest way to do this (assuming no caste-specific materials/tissues) is to put all of your non-caste-specific stuff first, then add just caste-specific parts in each caste, then come back together and add the materials and tissues.
It is essential that a bodypart have something to attach to when it is declared, which is why the UPPERBODY bit is always first. Something like
[BODY:HUMANOID_NECK:2EYES:2EARS:NOSE:2LUNGS:HEART:GUTS:ORGANS:HUMANOID_JOINTS:THROAT:NECK:SPINE:BRAIN:SKULL:5FINGERS:5TOES:MOUTH:TONGUE:FACIAL_FEATURES:TEETH:RIBCAGE]]
[CASTE:MALE]
[BODY:6TENTACLES]
[SET_BP_GROUP:BY_TYPE:LOWERBODY][BP_ADD_TYPE:GELDABLE]
[CASTE:FEMALE]
[BODY:2WINGS]
[FEMALE]
[MULTIPLE_LITTER_RARE]
[SELECT_CASTE:ALL]
[BODY_DETAIL_PLAN:STANDARD_MATERIALS]
[BODY_DETAIL_PLAN:STANDARD_TISSUES]
[BODY_DETAIL_PLAN:VERTEBRATE_TISSUE_LAYERS:SKIN:FAT:MUSCLE:BONE:CARTILAGE]
[USE_MATERIAL_TEMPLATE:NAIL:NAIL_TEMPLATE]
[USE_TISSUE_TEMPLATE:NAIL:NAIL_TEMPLATE]
[TISSUE_LAYER:BY_CATEGORY:FINGER:NAIL:FRONT]
[TISSUE_LAYER:BY_CATEGORY:TOE:NAIL:FRONT]
[SELECT_TISSUE_LAYER:HEART:BY_CATEGORY:HEART]
[PLUS_TISSUE_LAYER:SKIN:BY_CATEGORY:THROAT]
[TL_MAJOR_ARTERIES]
[BODY_DETAIL_PLAN:STANDARD_HEAD_POSITIONS]
[BODY_DETAIL_PLAN:HUMANOID_HEAD_POSITIONS]
[BODY_DETAIL_PLAN:HUMANOID_RIBCAGE_POSITIONS]
[BODY_DETAIL_PLAN:HUMANOID_RELSIZES]
[USE_MATERIAL_TEMPLATE:SINEW:SINEW_TEMPLATE]
[TENDONS:LOCAL_CREATURE_MAT:SINEW:200]
[LIGAMENTS:LOCAL_CREATURE_MAT:SINEW:200]
[HAS_NERVES]
[USE_MATERIAL_TEMPLATE:BLOOD:BLOOD_TEMPLATE]
[BLOOD:LOCAL_CREATURE_MAT:BLOOD:LIQUID]